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FIRST PAGE ECOTERRA NUMBER 17(2)/2020


Ecoterra, 2020, 17(2):1-11
ASSESSING ENVIRONMENTAL IMPACTS OF ENERGY SUPPLY SYSTEMS
EVALUAREA IMPACTULUI ASUPRA MEDIULUI A SISTEMELOR DE FURNIZARE A ENERGIEI

Ildiko Tulbure
University ”1 Decembrie 1918”, Alba Iulia, Romania
Marius Berca
Oltenia Energy Complex, Targu Jiu, Romania

The fact that humanity quality of life has steadily increased during the years is currently an unarguable reality. This development has obviously been possible because of the development of many industrial activities, which have had the intended goal to support growing humanity quality of life. Made experience has emphasized that industrial activities can have, beside positive desired impacts on humanity quality of life, also negative undesired ones. Such undesired impacts of technological applications are especially remarkable on environment and society. In this context energy supply systems have to be especially taken into account as actually being essentially for getting a corresponding humanity quality of life. Considering sustainable development of humanity, a concept being currently much debated on various levels, chances and risks of energy supply systems have to be attentively approached. There are energy supply systems based on fossil fuels and on renewable energy ressources. Not only economic and technological assessment criteria have to be considered when assessing energy supply systems but also environmental and social ones. By using various methods and instruments of Technology Assessment, a pretty recently developed subject, assessments of environmental impacts of energy supply systems can be carried out. Such environmental impact assessment studies are performed by applying specific analytical methods and instruments, as for instance calculating corresponding environmental footprint, applying life cycle assessment, or considering potential rebound effects in environmental field. In this contribution general notions about energy supply systems and their potential environmental impacts will be presented as well as future odds in order to minimize such impacts.


Ecoterra, 2020, 17(2):12-26
THE EFFECTIVITY OF USING HUMIC ACID AND FULVIC ACID FROM QUICKSTICK (GLIRICIDIA SEPIUM) COMPOST TO SLOW DOWN LEAD (PB) ACCUMULATION IN RED TILAPIA (OREOCHROMIS SP.) CULTIVATED IN EX-TIN MINE WATERS
EFICACITATEA UTILIZARII ACIDULUI HUMIC SI A ACIDULUI FULVIC EXTRASE DIN COMPOSTUL DE GLIRICIDIA SEPIUM IN INCETINIREA ACUMULARII DE PLUMB IN TILAPIA ROSIE (OREOCHROMIS SP.) CRESCUTA IN APE DIN MINE DE STANIU PARASITE

Robin
Department of Aquaculture, Faculty of Agriculture, Fisheries, and Biology, Bangka Belitung University, Bangka 33126, Indonesia
Eddy Supriyono, Kukuh Nirmala, Ridwan Affandi, Dedi Jusadi
Department of Aquaculture, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor 16680, Indonesia

The global demand for tin (Sn) is partially fulfilled by Indonesia. In Indonesia, one of the locations for tin exploration is in the Bangka Belitung Islands Province. Mining in this province has been conducted on land, but because the tin ore supply on land has significantly decreased, the mining is beginning to be conducted on the coast. The effects of mining on the land are the formation of large and deep water-filled pits in the ground. These pits are locally known as kolong. Utilizing kolong water as a source of water for freshwater fish aquaculture is hindered by lead (Pb) contamination; therefore, there needs to be conducted depuration and prevention of accumulation in the fish during the time the fish are raised in the kolong. The purpose of this study was to test the ability and determine the best dose for the G. sepium compost to prevent the accumulation of Pb in red tilapia (Oreochromis sp.) cultivated in a kolong. The method employed was mixing the G. sepium leaf compost into the test feed for the fish (as a feed additive). The fish which had an average weight of 10±0.01 g were raised for three months in 20 cage units. Each cage unit was 1.5×1×1.5 m3 in size and the stocking density was 50 fish unit-1. A the end of the experiment, the Gliricidia sepium leaf compost mixed in the feed as a feed additive was able to prevent or slow down Pb accumulation in red tilapia raised in the ex-tin mine kolong. The 40 g kg-1 dose was the best in preventing or slowing down the accumulation of Pb in red tilapia cultivated in the Pb-contaminated waters.


Ecoterra, 2020, 17(2):27-34
CONTROVERSIAL ON BIODIVERSITY AND CARBON SEQUESTRATION: IMPLICATION FOR BIODIVERSITY CONSERVATION
CONTROVERSE CU PRIVIRE LA BIODIVERSITATE SI CAPTAREA CARBONULUI: IMPLICATII PENTRU CONSERVAREA BIODIVERSITATII

Alefu Chinasho Gujube
Africa Center of Excellence for Climate-SABC, Haramaya University, Haramaya, Ethiopia; Department of Environmental Science, Wolaita Sodo University, Wolaita Sodo, Ethiopia
Dinku Balcha Deme
Department of Natural Resource Management, Arsi University, Asela, Ethiopia

The relationship between the level of biological diversity and the tons of carbon dioxide sequestered is an argumentative concept. Carbon sequestration happens during primary productivity which varies with the species richness. Conservationists and biodiversity institutes reveal that biodiversity has a significant positive correlation with carbon dioxide sequestered. Conversely, some scholars such as production foresters argue that the fast-growing monocrops (single-species) sink more tons of carbon dioxide than that of biologically diverse communities. This ambiguity could contribute to biodiversity loss by encouraging selected species (reduces species diversity). Despite this, no review paper on this argument has been published so far. Thus, this paper was initiated to figure out the information on controversial on biodiversity and carbon sequestration. This paper is expected to contribute to sustainable biodiversity conservation in different ecosystems by figuring out their carbon sequestration potentials. 


Ecoterra, 2020, 17(2):35-39
DEPLOYABILITY OF INTERNATIONAL MEDICAL TEAMS FOR DISASTER RESPONSE
CAPACITATEA DE DISLOCARE A ECHIPELOR MEDICALE INTERNATIONALE CA REACTIE IN CAZUL DEZASTRELOR

Peter Jackovics
National Directorate General for Disaster Management, Budapest, Hungary

Over the last decade, all around the world, disasters have occurred in high-density areas where many people live and work and where there are many residential buildings. This has increased the demand for experienced urban search and rescue (USAR) teams; that is, specially trained and equipped teams to get involved in rescuing the population and property after earthquakes in areas stricken by such disasters. The established technical and logistical processes enable the teams to arrive at the incident sites faster and to start the technical rescue operations as soon as possible, as well as delivering life-saving medical supplies to the people really in need.


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